| Project/Area Number |
60540213
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
固体物性
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
KUME Kiyoshi Tokyo Metropolitan University, Professor, 理学部, 教授 (10086994)
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| Co-Investigator(Kenkyū-buntansha) |
MIZOGUCHI Kenji Tokyo Metropolitan University, Assistant, 理学部, 助手 (40087101)
MIZUNO Kiyoshi Tokyo Metropolitan University, Assist. Professor, 理学部, 助教授 (40087094)
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| Project Period (FY) |
1985 – 1986
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| Project Status |
Completed (Fiscal Year 1986)
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| Budget Amount *help |
¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 1986: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1985: ¥800,000 (Direct Cost: ¥800,000)
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| Keywords | Conducting Polymers / Polyacetylene / Kondo effect / VSC法 |
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| Research Abstract |
This research was undertaken to look for the Kondo effect in conducting polymers. To this end we used heavily Fe <Cl_3> -doped polyacetylene which is conducting and has a localized magnetic moment. To observe the metallic conductivity inside of fibrils at low temperatures we made use of the VSC method. We found the metallic conduction down to 1.9 K which is proportional to <T^(-2)> . But we did not observe the resistivity minimum characteristic of the Kondo effect. Besides Fe <Cl_3> , we tried As <F_5> and HCl <SO_3> which have no localized moments. Although the resistivity minimum was observed in these cases, these could not be due to the Kondo effect, but was ascribed to the barrier effect between fibrils.
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